Inboard Boat Parts

Keep your inboard boat running strong with genuine replacement parts for Mastercraft, Supra, Moomba, and other top performance brands. Whether you own a ski boat, wakeboard boat, or wakesurf boat, WaterSkis.com has the inboard boat parts you need to keep your time on the water uninterrupted.

Explore our curated selection of Mastercraft boat parts, Supra boat parts, Moomba boat parts, and more—sourced from trusted OEMs and aftermarket brands known for quality, compatibility, and long-term durability. Our inventory includes engine components, electrical parts, ballast fittings, and maintenance essentials tailored to inboard boats used for watersports.

Not sure what fits your boat? Use our Boat Part Lookup Tool to match parts by make, model, and year for total confidence. At WaterSkis.com, we’re committed to helping you get back to skiing, surfing, and riding—with gear that performs when it counts.


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  • Supra | Moomba Drive Shaft-44.5"x 1" | 915

    Supra | Moomba Drive Shaft-44.5"x 1" | 915

    Skiers Choice
    $649.99
    Supra | Moomba Drive Shaft-44.5"x1" | 915 This is a Supra and Moomba Boats 44.5" Drive Shaft x 1" diameter. ***Skier’s Choice couplers are pressed onto the shaft and the assembly is CNC balanced to improve performance and reduce vibration. The...
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    $649.99
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  • MasterCraft Exhaust Hose Elbow - 350* Silicone 3.5"

    MasterCraft Exhaust Hose Elbow - 350* Silicone 3.5"

    MasterCraft
    $149.99
    MasterCraft Exhaust Hose Elbow - 350* Silicone 3.5" This is a genuine replacement exhaust elbow used on many MasterCraft boats. Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
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    $149.99
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  • Receptacle - DZUS 1/4 Turn Fastener

    Receptacle - DZUS 1/4 Turn Fastener

    MasterCraft
    $1.99
    Receptacle - DZUS 1/4 Turn Fastener   Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
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    $1.99
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  • Bimini Boot Only (Black) - 2021

    MasterCraft
    $274.99
      Bimini Boot Only (Black) - 2021 Bimini Boot Only. Black in color. For 2021 MasterCraft XT22/XT23 with ZFT4 Tower. ***Please call or email us with your boat Hull ID Number to verify fit***This canvas is made to order from MasterCraft. All canvas...
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    $274.99
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  • Lenco Actuator (Swell) | 853

    Lenco Actuator (Swell) | 853

    Skiers Choice
    $599.99
    Lenco Actuator (Swell) | 853 This is the OEM replacement for Moomba and Supra Boats. Get your surf system back up and running with a new actuator. Please use the boat part look up below to ensure you have the correct part for your year, make, and model...
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    $599.99
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  • Indmar Dipstick - 5.7L GM

    Indmar Dipstick - 5.7L GM

    Indmar
    $29.99
    Indmar Dipstick - 5.7L GM Dipstick for GM 350 engines.   Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
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    $29.99
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  • Indmar Tube Indicator - Oil 350

    Indmar Tube Indicator - Oil 350

    Indmar
    $97.25
    Indmar Tube Indicator - Oil 350 Dipstick tube for GM 350 engines.   Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
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    $97.25
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  • MasterCraft Biducer - Depth/Temp

    MasterCraft
    $520.99
    MasterCraft Biducer - Depth/Temp This is the OEM MasterCraft Boats Biducer. Please use the boat part look up below to ensure you have the correct part for your year, make, and model.  
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    $520.99
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  • Ilmor Gasket - 6.0L MPI Water Neck

    Ilmor Gasket - 6.0L MPI Water Neck

    Ilmor
    $4.99
    Ilmor Gasket - 6.0L MPI Water Neck The Ilmor gasket offers 100% sealing with application-specific materials to give you a sealing solution with the performance and durability you can trust.  
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    $4.99
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  • Indmar Temp Sender - 1/2" NPT

    Indmar Temp Sender - 1/2" NPT

    Indmar
    $57.99
    Indmar Engine Temperature Sensor Indmar temp sender 1/2" NPT. Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
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    $57.99
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  • MasterCraft Exhaust Flap

    MasterCraft Exhaust Flap

    MasterCraft
    $49.99
    MasterCraft Exhaust Flap MasterCraft Exhaust Flap for 2010 and newer boats. This flap will also work on older boats with a little trimming as that old flap has been discontinued. Use the boat part look up below to ensure you are purchasing the correct...
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    $49.99
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  • PTM ACC-140 Pro Combo Mirror Kit

    PTM ACC-140 Pro Combo Mirror Kit

    PTM Edge
    $599.99
    PTM ACC-140 Pro Combo Mirror Kit The PTM Edge Pro Combo Mirror is the perfect mirror and bracket combo for your boat. The included mirror is the PTM VR-140 Pro mirror. The included bracket is the billet aluminum ZXR-300. Use the boat part look up below...
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    $599.99
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  • MasterCraft Gauge - Fuel

    MasterCraft Gauge - Fuel

    MasterCraft
    $749.99
    MasterCraft Gauge - Fuel MasterCraft Gauge - Fuel. White face with chrome bezel. Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
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    $749.99
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  • MasterCraft Gauge - Voltage

    MasterCraft Gauge - Voltage

    MasterCraft
    $699.99
    MasterCraft Gauge - Voltage MasterCraft Gauge - Voltage. White face with chrome bezel. Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
    Qty in Cart: 0
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    $699.99
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  • MasterCraft Gauge - Oil Pressure

    MasterCraft Gauge - Oil Pressure

    MasterCraft
    $929.99
    MasterCraft Gauge - Oil Pressure MasterCraft Gauge - Oil Pressure. White face with chrome bezel. Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
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    $929.99
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  • MasterCraft Gauge - Temperature

    MasterCraft Gauge - Temperature

    MasterCraft
    $929.99
    MasterCraft Gauge - Temperature MasterCraft Gauge - Temperature. White face with chrome bezel. Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
    Qty in Cart: 0
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    $929.99
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  • Moomba OZ Tower Pivot Bolt

    Moomba OZ Tower Pivot Bolt

    Skiers Choice
    $39.99
    Moomba OZ Tower Pivot Bolt  Genuine Moomba OZ tower pivot bolt.
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    $39.99
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  • Skier's Choice Thru-Hull Fitting - 1" Straight

    Skier's Choice Thru-Hull Fitting - 1" Straight

    Skiers Choice
    $4.99
    Skier's Choice Thru-Hull Fitting - 1" Straight This fitting is used on Skier's Choice boats for the ballast thru-hull on the side of the boat. Color is black. Use the boat part look up below to ensure you are purchasing the correct part for your boat...
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    $4.99
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  • Skier's Choice Thru-Hull Fitting - 3/4" Straight

    Skier's Choice Thru-Hull Fitting - 3/4" Straight

    Skiers Choice
    $4.99
    Skier's Choice Thru-Hull Fitting - 3/4" Straight This fitting is used on Skier's Choice boats for the ballast and bilge thru-hull on the side of the boat. Color is black. Use the boat part look up below to ensure you are purchasing the correct part for...
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    $4.99
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Whether you're fixing a small issue or tackling a full-season tune-up, WaterSkis.com is your go-to source for inboard boat parts that match your boat and your lifestyle. We carry trusted parts for MasterCraft, Supra, Moomba, and other leading ski and wakeboard boats—all backed by our expert support. Need help finding the exact part? Use our Boat Part Lookup Tool for a fast, accurate match. And don’t forget to check out related categories like Boat Cleaning Products and Ballast System Parts to complete your setup.